Script event prediction concerns with the temporal relationships between script events [1]}, which requires models to choose a correct subsequent triple-organized event among the candidates [2]}. Prior work mainly focused on modeling event pairs [1]}, event chains [2]} and event graph [5]} to predict the subsequent event. Story ending generation focuses on generating plausible story endings [6]}, which requires models to understand the story context, and keep generated endings logically consistent with it [7]}, [8]}. The above tasks mainly investigate the logical orders of events, whereas the If-Then reasoning task focuses on inferring the mental state of event participants.
